Serve up the drinks while keeping those delicate table surfaces protected from scratches and damage with these drink coaster sets. Made of Dolomite material, this set of four round 4 3/8″ x 5/16″ coasters have a cork backing that prevents slipping and a natural wood storage rack. Suitable for use in a professional bar or restaurant or for entertaining at home. Available in assorted colors with natural woodgrain rack. Add your organizational or company logo or message to customize. Orders of 300 units or greater are eligible for sea shipping. Rush service is available.